BP faces another setback; oil slick threatens Fla.

PENSACOLA, Fla. (AP) - The BP oil slick drifted perilously close to the Florida Panhandle's famous sugar-white beaches Wednesday as a risky gambit to contain the leak by shearing off the well pipe ran into trouble a mile under the sea when the diamond-tipped saw became stuck.

The saw had sliced through about half of the pipe when it snagged, and it took BP 12 hours to free it. The company said preparations were being made to resume cutting, but didn't give a timetable on when it might start.

The plan is to fit a cap on the blown-out well at the bottom of the Gulf of Mexico to capture most of the spewing oil; the twisted, broken pipe must be sliced first to allow a snug fit.

"I don't think the issue is whether or not we can make the second cut. It's about how fine we can make it, how smooth we can make it," said Coast Guard Adm. Thad Allen, the government's point man for the crisis.

As the edge of the slick drifted within seven miles of Pensacola's beaches, emergency workers rushed to link the last in a miles-long chain of booms designed to fend off the oil. They were slowed by thunderstorms and wind before the weather cleared in the afternoon.

Forecasters said the oil would probably wash up by Friday, threatening a delicate network of islands, bays and white-sand beaches that are a haven for wildlife and a major tourist destination dubbed the Redneck Riviera.

"We are doing what we can do, but we cannot change what has happened," said John Dosh, emergency director for Escambia County, which includes Pensacola.

Allen said more staff, boats and helicopters were sent to the eastern Gulf Coast as the slick spread, including a cutter in Mobile Bay, Ala., and one off Pensacola. The boats will help skim oil and add more boom to collect it. Four helicopters would help skimmers spot threatening oil.

Since the biggest oil spill in U.S. history began to unfold April 20 with an explosion that killed 11 workers aboard an offshore drilling rig, crude has fouled some 125 miles of Louisiana coastline and washed up in Alabama and Mississippi as well. Over the past six weeks, the well has leaked anywhere from 21 million to 45 million gallons by the government's estimate.

The latest attempt to control the leak is considered risky because slicing away a section of the 20-inch-wide riser could remove kinks in the pipe and temporarily increase the flow of oil by as much as 20 percent. The cap could be placed over the spill as early as Wednesday.

If the strategy fails - like every other attempt to control the leak 5,000 feet underwater - the best hope is probably a relief well, which is at least two months from completion.

As the oil drifted closer to Florida, beachgoers in Pensacola waded into the gentle waves, cast fishing lines and sunbathed, even as a two-man crew took water samples. One of the men said they were hired by BP to collect samples to be analyzed for tar and other pollutants.

A few feet away, Martha Feinstein, 65, of Milton, Fla., pondered the fate of the beach she has been visiting for years. "You sit on the edge of your seat and you wonder where it's going," she said. "It's the saddest thing."

Officials said the slick sighted offshore consisted in part of "tar mats" about 500 feet by 2,000 feet in size.

County officials set up the booms to block oil from reaching inland waterways but planned to leave beaches unprotected because they are too difficult to defend against the action of the waves and because they are easier to clean up.

"It's inevitable that we will see it on the beaches," said Keith Wilkins, deputy chief of neighborhood and community services for Escambia County.

Florida's beaches play a crucial role in the state's tourism industry. At least 60 percent of vacation spending in the state during 2008 was in beachfront cities. Worried that reports of oil would scare tourists away, state officials are promoting interactive Web maps and Twitter feeds to show travelers - particularly those from overseas - how large the state is and how distant their destinations may be from the spill.

In other developments:

- Investors ran from BP's stock for a second day, fearful of the potential cleanup costs, lawsuits, penalties and damage to the company's reputation. - President Barack Obama said it is time to roll back billions of dollars in tax breaks for oil companies and use the money for clean energy research and development.

- A pair of Democratic senators pressed BP to delay plans to pay shareholder dividends worth $10 billion or more. They called it "unfathomable" that BP would pay out a dividend before the total cost of the cleanup is known. BP had no comment.

- More fishing grounds were closed. More than one-third of federal waters in the Gulf are now off-limits to fishing, along with hundreds of square miles of state waters. "I'm going to be bankrupt very soon," said fisherman Hong Le, who came to the U.S. from Vietnam and rebuilt his home and business after Hurricane Katrina in 2005 wiped him out. "Everything is financed. How can I pay? No fishing, no welding. I weld on commercial fishing boats and they aren't going out now, so nothing breaks."

--- Melissa Nelson reported from Pensacola, Fla., and Adam Geller from New Orleans. Associated Press writers Greg Bluestein in Covington, La., Matt Sedensky in Pensacola, Travis Reed in Miami, Kevin McGill over the Gulf of Mexico, Darlene Superville and Pete Yost in Washington, Brian Skoloff in Port Fourchon, La., Mary Foster in Boothville, La., and Michael Kunzelman in New Orleans also contributed to this report.

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